Boy runs fast to catch train.

Meaning: A boy is moving his legs quickly in order to reach a train before it leaves.

Choice of Words: Boy is a noun that refers to a young male person. Runs is a verb that describes the action of moving quickly on foot. Fast is an adverb that describes the speed of something. To is a preposition that indicates the direction of something. Catch is a verb that describes the action of grabbing something. Train is a noun that refers to a vehicle that runs on rails.

Alternative Expressions

Related Expressions